CN102734508A - Energy-saving type low-resistance low-power silent check valve - Google Patents
Energy-saving type low-resistance low-power silent check valve Download PDFInfo
- Publication number
- CN102734508A CN102734508A CN201210224570XA CN201210224570A CN102734508A CN 102734508 A CN102734508 A CN 102734508A CN 201210224570X A CN201210224570X A CN 201210224570XA CN 201210224570 A CN201210224570 A CN 201210224570A CN 102734508 A CN102734508 A CN 102734508A
- Authority
- CN
- China
- Prior art keywords
- semiaxis
- valve core
- spool
- core plate
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 claims description 21
- 230000008676 import Effects 0.000 claims description 13
- 230000005389 magnetism Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 1
Images
Landscapes
- Check Valves (AREA)
Abstract
The invention discloses an energy-saving type low-resistance low-power silent check valve which comprises a valve cavity and a valve core plate fixedly installed at the axis position of the valve cavity. A half of the valve outlet of the valve core plate is a cylindrical valve core circular shaft, and a half of the valve inlet of the valve core plate comprises two semi-cylindrical half shafts, including a movable valve core half shaft and a fixed valve core half shaft. The valve core plate can be sleeved on the movable valve core half shaft and the fixed valve core half shaft to move along the axis direction of the valve. The energy-saving type low-resistance low-power silent check valve is characterized in that the movable valve core half shaft is connected with the valve core circular shaft through a rotating shaft in a manner that the movable valve core half shaft can open and close in the radial direction along the valve cavity at one end of the valve inlet; a valve core plate central hole bevel port facing the direction of the valve inlet is arranged at the area in which the movable valve core half shaft is located; and the valve core plate central hole bevel port is consistent with the bevel angle formed when the movable valve core half shaft is opened, and enables the movable valve core half plate to rightly clamp the valve core plate so as to exert an axial force onto the valve core plate, so that the valve core plate can overcome the action force of a valve core plate return spring at the other side of the valve core plate so as not to move to the fluid inlet side of the check valve.
Description
Technical field
The present invention relates to the little power consumption DRV of energy-saving little resistance, be applicable to all liq medium, belong to the synthetic energy-saving discharge-reducing technical field.
Background technique
Safety check is in many pipe conveying procedures, is the valve commonly used that prevents to carry liquid to flow backwards; But the safety check on the market all is after backing down through fluid pressure now, needs the surge pressure of working fluid to keep opening of check valve plate always, and this has just consumed suitable energy and pressure drop; Though the safety check valve plate that has now is very thin, very light, pressure drop was less when liquid was flowed through in valve, power consumption is lower, and this safety check is because valve plate is too thin, too light, and when not having the import fluid pressure, the sealing of valve plate is relatively poor, the effect that does not have non-return that has; The patent of Wei Baiqing " 201120251731.5 safety check " and " 201210054615.3 energy-saving little resistance adjustable self balancing safety check " can no longer need impact force after opening valve plate be that pressure keeps valve plate to open; But that is applicable to Swing check valve, does not also see similar patent or document for DRV.
Summary of the invention
The purpose of this invention is to provide a kind of impact force that can after opening valve plate, no longer need is the little power consumption DRV of energy-saving little resistance that pressure keeps valve plate to open.
The little power consumption DRV of energy-saving little resistance; Comprise valve chamber and its valve outlet port that is fixed on the valve chamber shaft core position half the for cylinder bodily form spool circular shaft, its valve import half be two semi-cylindrical movable spool semiaxis with the fixed spool semiaxis and can and be enclosed within valve core plate mobile on movable spool semiaxis and the fixed spool semiaxis along valve shaft heart direction, it is characterized in that:
1, the spool circular shaft is installed in half position of valve outlet port side; It is a cylindrical body; Movable spool semiaxis and fixed spool semiaxis are installed in half position of valve suction side, and movable spool semiaxis is a half round post, and the fixed spool semiaxis is the same with movable spool semiaxis size shape and combine cylindrical body of composition; Wherein the fixed spool semiaxis links to each other with the spool circular shaft and is the one on same axis; Movable spool semiaxis is linked to each other by rotating shaft with the spool circular shaft in the position that the fixed spool semiaxis links to each other with the spool circular shaft, movable spool semiaxis can be done radially along valve chamber at valve import one end open and close, and valve core plate is installed on the circular shaft of being made up of movable spool semiaxis and fixed spool semiaxis; The position that the valve core plate center hole is connected with movable spool semiaxis; Have in movable spool semiaxis district one towards the valve importer to valve core plate center hole angle, the oblique angle when opening with movable spool semiaxis is consistent, and makes movable spool semiaxis can just block valve core plate; Thereby give axial force of valve core plate; Make valve core plate overcome the valve core plate opposite side the power effect of valve core plate return spring and can not be to safety check fluid inlet side shifting, and then also reduced valve core plate widely and make the fluid form pressure drop because of the active force of valve core plate return spring power, movable spool semiaxis has following four types:
(A) the Weight-balancing type DRV of level installation: its movable spool semiaxis is under the fixed spool semiaxis; And its end away from rotating shaft is equipped with a balancing weight; Balancing weight can move to regulate its position along movable spool semiaxis and regulate the size that movable spool semiaxis acts on the axial force of valve core plate; With control valve central layer resistance pressure drop because of the generation of valve core plate return spring power effect convection cell when opening; Be that this resistance is controlled at 10 ~ 50 grams in principle, can be returned to the position of closing in time, apace to guarantee safety check valve core plate when import does not have pressure.
(B) vertically arranged Weight-balancing type DRV: movable spool semiaxis is longer than fixed spool semiaxis; Its movable spool semiaxis is equipped with a movable spool semiaxis curved boom at the end away from rotating shaft; Movable spool semiaxis curved boom turns to fixed spool semiaxis direction; Movable spool semiaxis curved boom becomes one 45 ° ~ 135 ° fixed angles with movable spool semiaxis; And on its movable spool semiaxis curved boom a balancing weight is housed, balancing weight can move to regulate its position along movable spool semiaxis curved boom and regulate the size that movable spool semiaxis acts on the axial force of valve core plate, with control valve central layer resistance pressure drop because of the generation of valve core plate return spring power effect convection cell when opening; Be that this resistance is controlled at 10 ~ 50 grams in principle, can be returned to the position of closing in time, apace to guarantee safety check valve core plate when import does not have pressure.
(C) spring force balanced type DRV: movable spool semiaxis has a spring sheet near spool circular shaft district; The spring force top of spring sheet is to the zone of fixed spool semiaxis near the spool circular shaft; Make movable spool semiaxis have one will open and away from the power of fixed spool semiaxis; Thereby after valve core plate is washed open by fluid, an axial force that acts on valve core plate is arranged to reduce the resistance pressure drop that valve core plate produces because of valve core plate return spring power effect convection cell when opening; Spring force balanced type DRV both had been applicable to that level installed, and was applicable to vertical installation again, but level will be considered the directivity up of check valve design when installing.
(D) magnetic repulsion balanced type DRV: movable spool semiaxis has the magnetic of a permanent magnetism to scold piece near spool circular shaft district; The fixed spool semiaxis also has the magnetic of a permanent magnetism to scold piece near spool circular shaft zone; The magnetic of two blocks of permanent magnetism scold the piece position relatively and magnetic pole repulsion phase to installing; Make movable spool semiaxis have one will open and away from the power of fixed spool semiaxis; Thereby after valve core plate is washed open by fluid, an axial force that acts on valve core plate is arranged to reduce the resistance pressure drop that valve core plate produces because of valve core plate return spring power effect convection cell when opening; Magnetic repulsion balanced type DRV both had been applicable to that level installed, and was applicable to vertical installation again, but level will be considered the directivity up of check valve design when installing.
The present invention compared with prior art has the following advantages:
1. after DRV was opened by fluid impact, spool was in a stable open mode, opened spool to keep the opening state of DRV and no longer need lean on the impact force of fluid to stablize.
2. in the moment that the hydrodynamic pressure of valve entrance point disappears, because the valve core plate return spring power effect of valve outlet port end can make valve core plate get back to the position that DRV is closed.
Description of drawings
Fig. 1 is the valve state of the opening cross-sectional view that the embodiment of the invention one Weight-balancing type level is installed;
Fig. 2 closes valve state cross-sectional view in embodiment illustrated in fig. 1;
Fig. 3 is the vertically arranged valve state cross-sectional view of opening of the embodiment of the invention two Weight-balancing types;
Fig. 4 closes valve state cross-sectional view in embodiment illustrated in fig. 3;
Fig. 5 is the valve state of the opening cross-sectional view of the embodiment of the invention three spring force balanced types;
Fig. 6 closes valve state cross-sectional view in embodiment illustrated in fig. 5;
Fig. 7 is the valve state of the opening cross-sectional view of the embodiment of the invention four magnetic repulsion balanced types;
Fig. 8 closes valve state cross-sectional view in embodiment illustrated in fig. 7.
Among Fig. 1-8: 1, valve outlet port flange 2, cross fixed support 3, valve core plate return spring 4, spool circular shaft 5, valve body 6, valve core plate sealing surface 7, valve core plate 8, movable spool semiaxis 9, balancing weight 10, valve suction flange 11, fixed spool semiaxis 12, three fork-shaped fixed supports 13, movable spool semiaxis curved boom 14, spring sheet
15, magnetic is scolded piece 16, valve core plate center hole angle.
Embodiment
In the embodiment of the Weight-balancing type DRV that the level shown in Fig. 1-2 is installed: after the start of the pump before the DRV; Fluid flows into from the valve import; Because the inlet pressure effect of fluid; Wash the effect that valve core plate 7 overcomes valve core plate return spring 3 power open and move to the valve outlet port direction, along with opening of valve core plate 7, movable spool semiaxis 8 is also opened simultaneously step by step; Balancing weight 9 actions of gravity on the movable spool semiaxis 8; Pushing valve core plate 7 for 16 1 end thrusts of valve core plate center hole angle and move to the valve outlet port direction, is that movable spool semiaxis 8 is big more with the angle of fixed spool semiaxis 11 because valve core plate 7 more past movable spool semiaxis 8 move with spool circular shaft 4 connection mouths, and the balancing weight 9 on the movable spool semiaxis 8 gives the thrust of valve core plate center hole angle 16 just big more; Open fully up to valve core plate 7 and promptly to move to movable spool semiaxis 8 and spool circular shaft 4 connection mouth places; It is maximum that balancing weight on the movable spool semiaxis 89 is given the thrust of valve core plate center hole angle 16 at this moment, and its value is for being slightly less than valve core plate return spring 3 power, at this moment; Valve core plate 7 stops to move and preserving the stable equilibrium, and safety check also is in the stable opening state that the safety check front pump goes out the impact force of fluid that do not consume; After the pump before the safety check is shut down; Owing to lost the thrust of fluid before the safety check; So will forcing valve core plate 7 to move and pushing movable spool semiaxis 8 toward the position of closing for bigger valve core plate return spring 3 power of thrust of valve core plate center hole angle 16 than the balancing weight on the movable spool semiaxis 89 merges to fixed spool semiaxis 11; Because movable spool semiaxis 8 is more little with the angle of fixed spool semiaxis 11, the balancing weight 9 on the movable spool semiaxis 8 gives the thrust of valve core plate center hole angle 16 just more little, therefore; Valve core plate return spring 3 power are shifted valve core plate 7 onto close position soon, close safety check.
In the embodiment of the vertically arranged Weight-balancing type DRV shown in Fig. 3-4: after the start of the pump before the DRV; Fluid flows into from the valve import; Because the inlet pressure effect of fluid; Washing the effect that valve core plate 7 overcomes valve core plate return spring 3 power open moves to the valve outlet port direction; Along with opening of valve core plate 7; Movable spool semiaxis 8 is also opened simultaneously step by step, and the balancing weight 9 partical gravity effects on the movable spool semiaxis curved boom 13 that links to each other with movable spool semiaxis 8 are being pushed valve core plate 7 for 16 1 end thrusts of valve core plate center hole angle and moved to the valve outlet port direction; Because it is that movable spool semiaxis 8 is big more with the angle of fixed spool semiaxis 11 that valve core plate 7 more past movable spool semiaxis 8 move with spool circular shaft 4 connection mouths; Balancing weight 9 on the movable spool semiaxis curved boom 13 that links to each other with movable spool semiaxis 8 gives the thrust of valve core plate center hole angle 16 just big more, opens fully up to valve core plate 7 and promptly moves to movable spool semiaxis 8 and spool circular shaft 4 connection mouth places, and the balancing weight 9 on the movable spool semiaxis curved boom 13 that link to each other with movable spool semiaxis 8 this moment gives the thrust of valve core plate center hole angle 16 maximum; Its value is for being slightly less than the gravity sum of valve core plate return spring 3 and valve core plate 7; At this moment, valve core plate 7 stops to move and preserving the stable equilibrium, and safety check also is in the stable opening state that the safety check front pump goes out the impact force of fluid that do not consume; After the pump before the safety check is shut down; Owing to lost the thrust of fluid before the safety check; So valve core plate return spring 3 power will force valve core plate 7 to move and pushing movable spool semiaxis 8 toward the position of closing to 11 merging of fixed spool semiaxis for the thrust of valve core plate center hole angle 16 with the balancing weight 9 that the gravity sum of valve core plate 7 is slightly larger than on the movable spool semiaxis curved boom 13 that links to each other with movable spool semiaxis 8; Because movable spool semiaxis 8 is more little with the angle of fixed spool semiaxis 11; Balancing weight 9 on the movable spool semiaxis curved boom 13 that links to each other with movable spool semiaxis 8 gives the thrust of valve core plate center hole angle 16 just more little; Therefore, the gravity of valve core plate return spring 3 power and valve core plate 7 is shifted valve core plate 7 onto close position soon, closes safety check.
In the embodiment of the spring force balanced type DRV shown in Fig. 5-6: after the start of the pump before the DRV; Fluid flows into from the valve import, because the inlet pressure effect of fluid, washes the effect that valve core plate 7 overcomes valve core plate return spring 3 power open and moves to the valve outlet port direction; Along with opening of valve core plate 7; Movable spool semiaxis 8 is also opened simultaneously step by step, and the spring sheet 14 on the movable spool semiaxis 8 is given the active force of fixed spool semiaxis 11, even the power that the angle of movable spool semiaxis 8 and fixed spool semiaxis 11 increases; Thereby pushing valve core plate 7 for 16 1 end thrusts of valve core plate center hole angle moves to the valve outlet port direction; Open fully up to valve core plate 7 and promptly to move to movable spool semiaxis 8 and spool circular shaft 4 connection mouth places, the spring sheet 14 on this moment movable spool semiaxis 8 is given the active force of fixed spool semiaxis 11, the thrust of giving valve core plate 7 through the valve core plate center hole angle 16 of pushing valve core plate 7; Be slightly less than valve core plate return spring 3 power; At this moment, valve core plate 7 stops to move and preserving the stable equilibrium, and safety check also is in the stable opening state that the safety check front pump goes out the impact force of fluid that do not consume; After the pump before the safety check is shut down; Owing to lost the thrust of fluid before the safety check; Because valve core plate return spring 3 power are slightly larger than the thrust that spring sheet 14 on the movable spool semiaxis 8 is given the active force of fixed spool semiaxis 11, given valve core plate 7 through the valve core plate center hole angle 16 of pushing valve core plate 7; Merge to fixed spool semiaxis 11 forcing valve core plate 7 to move and pushing movable spool semiaxis 8 toward the position of closing; Therefore, valve core plate return spring 3 power are shifted valve core plate 7 onto close position, close safety check.
In the embodiment of the magnetic repulsion balanced type DRV shown in Fig. 7-8: after the start of the pump before the DRV; Fluid flows into from the valve import; Because the inlet pressure effect of fluid; Wash the effect that valve core plate 7 overcomes valve core plate return spring 3 power open and move to the valve outlet port direction, along with opening of valve core plate 7, movable spool semiaxis 8 is also opened simultaneously step by step; Magnetic on the movable spool semiaxis 8 scolds piece 15 to scold the active force of piece 15 homopolar-repulsions to the magnetic on the fixed spool semiaxis 11; Even the power that the angle of movable spool semiaxis 8 and fixed spool semiaxis 11 increases moves to the valve outlet port direction thereby pushing valve core plate 7 for 16 1 end thrusts of valve core plate center hole angle, open fully up to valve core plate 7 and promptly move to movable spool semiaxis 8 and spool circular shaft 4 connection mouth places; Magnetic on the movable spool semiaxis 8 scolds piece 15 to scold the active force of piece 15 homopolar-repulsions to the magnetic on the fixed spool semiaxis 11 at this moment; Thrust through the valve core plate center hole angle 16 of pushing valve core plate 7 is given valve core plate 7 is slightly less than valve core plate return spring 3 power, at this moment; Valve core plate 7 stops to move and preserving the stable equilibrium, and safety check also is in the stable opening state that the safety check front pump goes out the impact force of fluid that do not consume; After the pump before the safety check is shut down; Owing to lost the thrust of fluid before the safety check; Because the thrust that valve core plate return spring 3 power are slightly larger than active force that magnetic on the movable spool semiaxis 8 scolds piece 15 to give magnetic on the fixed spool semiaxis 11 to scold piece 15 homopolar-repulsions, give valve core plate 7 through the valve core plate center hole angle 16 of pushing valve core plate 7; Merge to fixed spool semiaxis 11 forcing valve core plate 7 to move and pushing movable spool semiaxis 8 toward the position of closing; Therefore, valve core plate return spring 3 power are shifted valve core plate 7 onto close position, close safety check.
Claims (5)
1. the little power consumption DRV of energy-saving little resistance; Comprise that half the half is that two semi-cylindrical movable spool semiaxis (8) are with fixed spool semiaxis (11) and can and be enclosed within movable spool semiaxis (8) along valve shaft heart direction and go up the valve core plate (7) that moves with fixed spool semiaxis (11) for cylinder bodily form spool circular shaft (4), its valve import for valve chamber and its valve outlet port that is fixed on the valve chamber shaft core position; It is characterized in that: spool circular shaft (4) is installed in half position of valve outlet port side; It is a cylindrical body; Movable spool semiaxis (8) and fixed spool semiaxis (11) are installed in half position of valve suction side; Movable spool semiaxis (8) is a half round post; Fixed spool semiaxis (11) is the same with movable spool semiaxis (11) size shape and combine and form a cylindrical body; Wherein fixed spool semiaxis (11) links to each other with spool circular shaft (4) and is the one on same axis; Movable spool semiaxis (8) is linked to each other by rotating shaft with spool circular shaft (4) in the position that fixed spool semiaxis (11) links to each other with spool circular shaft (4); Movable spool semiaxis (8) can be done radially along valve chamber at valve import one end open and close, valve core plate (7) is installed on the circular shaft of being made up of movable spool semiaxis (8) and fixed spool semiaxis (11), the position that the valve core plate center hole is connected with movable spool semiaxis (8); Have in movable spool semiaxis (8) district one towards the valve importer to valve core plate center hole angle (16); Consistent with the oblique angle of movable spool semiaxis (8) when opening, and make movable spool semiaxis (8) can just block valve core plate (7), thus give (7) axial forces of valve core plate; Make valve core plate (7) overcome valve core plate (7) opposite side valve core plate return spring (3) power effect and can not be to safety check fluid inlet side shifting, and then also reduced valve core plate (7) widely and make the fluid form pressure drop because of the active force of valve core plate return spring (3) power.
2. the little power consumption DRV of energy-saving little resistance as claimed in claim 1; It is characterized in that: the Weight-balancing type DRV that level is installed: its movable spool semiaxis (8) is under fixed spool semiaxis (11); And its end away from rotating shaft is equipped with a balancing weight (9); Balancing weight (9) can move along movable spool semiaxis (8) and regulate the size that movable spool semiaxis (8) acts on the axial force of valve core plate (7) to regulate its position; With control valve central layer (7) resistance pressure drop because of the generation of valve core plate return spring (3) power effect convection cell when opening; Be that this resistance is controlled at 10 ~ 50 grams in principle, can be returned to the position of closing in time, apace to guarantee safety check valve core plate (7) when import does not have pressure.
3. the little power consumption DRV of energy-saving little resistance as claimed in claim 1; It is characterized in that: vertically arranged Weight-balancing type DRV: movable spool semiaxis (8) is longer than fixed spool semiaxis (11); Its movable spool semiaxis (8) is equipped with a movable spool semiaxis curved boom (13) at the end away from rotating shaft; Movable spool semiaxis curved boom (13) turns to fixed spool semiaxis (11) direction; Movable spool semiaxis curved boom (13) becomes one 45 ° ~ 135 ° fixed angles with movable spool semiaxis (8); And on its movable spool semiaxis curved boom (13) balancing weight (9) is housed; Balancing weight (9) can move along movable spool semiaxis curved boom (13) and regulate the size that movable spool semiaxis (8) acts on the axial force of valve core plate (7) to regulate its position; With the resistance pressure drop that control valve central layer (7) produces because of valve core plate return spring (3) power effect convection cell when opening, be that this resistance is controlled at 10 ~ 50 grams in principle, can be returned to the position of closing in time, apace to guarantee safety check valve core plate (7) when import does not have pressure.
4. the little power consumption DRV of energy-saving little resistance as claimed in claim 1; It is characterized in that: spring force balanced type DRV: movable spool semiaxis (8) has a spring sheet (14) near spool circular shaft (4) district; The spring force top of spring sheet (14) is to the zone of fixed spool semiaxis (11) near spool circular shaft (4); Make movable spool semiaxis (8) have one will open and away from the power of fixed spool semiaxis (11); Thereby after valve core plate (7) is washed open by fluid, an axial force that acts on valve core plate (7) is arranged to reduce the resistance pressure drop that valve core plate (7) produces because of valve core plate return spring (3) power effect convection cell when opening; Spring force balanced type DRV both had been applicable to that level installed, and was applicable to vertical installation again, but level will be considered the directivity up of check valve design when installing.
5. the little power consumption DRV of energy-saving little resistance as claimed in claim 1; It is characterized in that: magnetic repulsion balanced type DRV: movable spool semiaxis (8) has the magnetic of a permanent magnetism to scold piece (15) near spool circular shaft (4) district; Fixed spool semiaxis (11) also has the magnetic of a permanent magnetism to scold piece (15) near spool circular shaft (4) zone; The magnetic of two blocks of permanent magnetism scold piece (15) position relatively and magnetic pole repulsion phase to installing; Make movable spool semiaxis (8) have one will open and away from the power of fixed spool semiaxis (11); Thereby after valve core plate (7) is washed open by fluid, an axial force that acts on valve core plate (7) is arranged to reduce the resistance pressure drop that valve core plate (7) produces because of valve core plate return spring (3) power effect convection cell when opening; Magnetic repulsion balanced type DRV both had been applicable to that level installed, and was applicable to vertical installation again, but level will be considered the directivity up of check valve design when installing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210224570 CN102734508B (en) | 2012-07-02 | 2012-07-02 | Energy-saving type low-resistance low-power silent check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210224570 CN102734508B (en) | 2012-07-02 | 2012-07-02 | Energy-saving type low-resistance low-power silent check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102734508A true CN102734508A (en) | 2012-10-17 |
| CN102734508B CN102734508B (en) | 2013-07-24 |
Family
ID=46990539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210224570 Expired - Fee Related CN102734508B (en) | 2012-07-02 | 2012-07-02 | Energy-saving type low-resistance low-power silent check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102734508B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867758A (en) * | 2014-04-03 | 2014-06-18 | 魏伯卿 | Self-sealing check valve with constant tiny resistance |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759048B (en) * | 2014-02-05 | 2015-12-30 | 魏伯卿 | The permanent micro-resistance safety check of self-regualting type |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10220603A (en) * | 1997-02-12 | 1998-08-21 | Tomoe Gijutsu Kenkyusho:Kk | Dual plate check valve |
| US20100326544A1 (en) * | 2009-06-29 | 2010-12-30 | John Ernest Elwart | Shock responsive check valve |
| CN202132560U (en) * | 2011-06-30 | 2012-02-01 | 铜陵万通阀门有限公司 | Tiny drag slow shut check valve |
| CN202228731U (en) * | 2011-09-05 | 2012-05-23 | 安徽荣达阀门有限公司 | Wafer type dish check valve |
| CN202228725U (en) * | 2011-07-18 | 2012-05-23 | 魏伯卿 | Check valve |
-
2012
- 2012-07-02 CN CN 201210224570 patent/CN102734508B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10220603A (en) * | 1997-02-12 | 1998-08-21 | Tomoe Gijutsu Kenkyusho:Kk | Dual plate check valve |
| US20100326544A1 (en) * | 2009-06-29 | 2010-12-30 | John Ernest Elwart | Shock responsive check valve |
| CN202132560U (en) * | 2011-06-30 | 2012-02-01 | 铜陵万通阀门有限公司 | Tiny drag slow shut check valve |
| CN202228725U (en) * | 2011-07-18 | 2012-05-23 | 魏伯卿 | Check valve |
| CN202228731U (en) * | 2011-09-05 | 2012-05-23 | 安徽荣达阀门有限公司 | Wafer type dish check valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867758A (en) * | 2014-04-03 | 2014-06-18 | 魏伯卿 | Self-sealing check valve with constant tiny resistance |
| CN103867758B (en) * | 2014-04-03 | 2016-01-20 | 魏伯卿 | Permanent micro-resistance selfsealings safety check |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102734508B (en) | 2013-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104847930B (en) | Water hammer-resistant slow closing swing check valve | |
| CN205260931U (en) | Bionical low pressure drop axial -flow type check valve | |
| CN102734508B (en) | Energy-saving type low-resistance low-power silent check valve | |
| CN202884138U (en) | Check valve | |
| CN202659981U (en) | Silent check valve | |
| CN202612731U (en) | Micro-resistance and micro-power consumption silent stop valve | |
| CN106948996B (en) | A kind of device for improving water hammer effect and generating kinetic energy | |
| CN204477396U (en) | A kind of one-way non-return control valve unit | |
| CN201944341U (en) | Symmetrical ball valve | |
| CN203477346U (en) | Glue hanging sealing double-spring butterfly type stop valve | |
| CN203686271U (en) | Novel energy-saving check valve | |
| CN203835774U (en) | Water inlet bottom valve of water pump | |
| CN202684155U (en) | Valve body drill jig for ball check valve | |
| CN202327246U (en) | Straight-through check valve | |
| CN203500643U (en) | Gate valve capable of preventing water hammers | |
| CN211649168U (en) | Low-resistance check valve | |
| CN202530430U (en) | Quick gate with small built-in flap valve | |
| CN205331514U (en) | Cast steel swing check valve's valve body | |
| CN2895927Y (en) | Quick-closing hammer-free energy-saving non-return valve | |
| CN204436775U (en) | A kind of big orifice touch-type instantaneous reverse valve | |
| CN202182241U (en) | Permanent magnet direct control valve | |
| CN204122701U (en) | A kind of check valve penetrating sand machine supplies sand device | |
| CN202834229U (en) | Adjustable automatic check valve | |
| CN201934732U (en) | Soft-sealing resistance-free check valve | |
| CN203906913U (en) | Check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181015 Address after: 233010 409 Wu Wan Road, Yuhui District, Bengbu, Anhui Patentee after: BENGBU JINSHI NEW MATERIAL Co.,Ltd. Address before: 230031 B-1014, 10 floor, business office building, Wo Ye garden, Shushan District, Hefei, Anhui. Patentee before: HEFEI WISDOM LOTUT INTELLECTUAL PROPERTY Co.,Ltd. Effective date of registration: 20181015 Address after: 230031 B-1014, 10 floor, business office building, Wo Ye garden, Shushan District, Hefei, Anhui. Patentee after: HEFEI WISDOM LOTUT INTELLECTUAL PROPERTY Co.,Ltd. Address before: 201204 Room 501, Lane 777, Mei Hua Road, Pudong New Area, Shanghai, 501 Patentee before: Wei Boqing |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181128 Address after: 224400 No. 10 (M) National Pioneer Park, Goudun Town, Funing County, Yancheng City, Jiangsu Province Patentee after: JIANGSU YANGAO VALVE MANUFACTURING CO.,LTD. Address before: 233010 409 Wu Wan Road, Yuhui District, Bengbu, Anhui Patentee before: BENGBU JINSHI NEW MATERIAL Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |